Controlled burn

Tribune photo by Zbigniew Bzdak

Noel Pavlovic, left, ecologist with the U.S. Geological Survey makes notes during an experimental burn to control invasive species his research team conducts in the Indiana Dunes National Lakeshore near Porter, Indiana.

Noel Pavlovic, left, ecologist with the U.S. Geological Survey makes notes during an experimental burn to control invasive species his research team conducts in the Indiana Dunes National Lakeshore near Porter, Indiana. (Tribune photo by Zbigniew Bzdak)

Noel Pavlovic, left, ecologist with the U.S. Geological Survey makes notes during an experimental burn to control invasive species his research team conducts in the Indiana Dunes National Lakeshore near Porter, Indiana.